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Overview

overview

10

Static

static

3

winprofile

windows7-x64

10

winprofile

windows10-1703-x64

10

Analysis

  • max time kernel
    29s
  • max time network
    296s
  • platform
    windows10-1703_x64
  • resource
    win10-20231220-en
  • resource tags

    arch:x64arch:x86image:win10-20231220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08/01/2024, 04:48

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General

  • Target

    21a3403e49ae025b38441ee648e8eebf5b99b7c24226b968f2b38a4ce66ed431.exe

  • Size

    219KB

  • MD5

    71c0797d060ae8a45196a9336fbf7b5d

  • SHA1

    a2838790fa259240e53207be47535d0f89d15f40

  • SHA256

    21a3403e49ae025b38441ee648e8eebf5b99b7c24226b968f2b38a4ce66ed431

  • SHA512

    2c2ae9c6510408b17a77e3ac1623a550784d2002fcaea4bf75372aeabb06a430cbe7f5543fd9631c92a545a0817f007fb65d192d75c35239c3bbb7a906fb48d9

  • SSDEEP

    3072:s9L3vACvLJiX7ezDwPh0jb4rVyYI08+Yi1DrRlWwgvXF/LwHO1/D:s9L3Xv5cPhSoVyYI+KwgdDwHa

Score
10/10
smokeloaderpub1backdoortrojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/
rc4.i32
rc4.i32

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Executes dropped EXE 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\21a3403e49ae025b38441ee648e8eebf5b99b7c24226b968f2b38a4ce66ed431.exe
    "C:\Users\Admin\AppData\Local\Temp\21a3403e49ae025b38441ee648e8eebf5b99b7c24226b968f2b38a4ce66ed431.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4040
    • C:\Users\Admin\AppData\Local\Temp\21a3403e49ae025b38441ee648e8eebf5b99b7c24226b968f2b38a4ce66ed431.exe
      "C:\Users\Admin\AppData\Local\Temp\21a3403e49ae025b38441ee648e8eebf5b99b7c24226b968f2b38a4ce66ed431.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:220
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 220 -s 500
        3⤵
        • Program crash
        PID:5000
  • C:\Users\Admin\AppData\Local\Temp\CE1D.exe
    C:\Users\Admin\AppData\Local\Temp\CE1D.exe
    1⤵
    • Executes dropped EXE
    PID:596
  • C:\Users\Admin\AppData\Local\Temp\E6A8.exe
    C:\Users\Admin\AppData\Local\Temp\E6A8.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4852
    • C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"
      2⤵
      • Executes dropped EXE
      PID:2788
  • C:\Users\Admin\AppData\Roaming\ebrfdus
    C:\Users\Admin\AppData\Roaming\ebrfdus
    1⤵
      PID:4460
      • C:\Users\Admin\AppData\Roaming\ebrfdus
        C:\Users\Admin\AppData\Roaming\ebrfdus
        2⤵
          PID:1568

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/220-4-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

        Download

      • memory/220-3-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

        Download

      • memory/220-9-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

        Download

      • memory/1568-53-0x0000000000400000-0x0000000000409000-memory.dmp

        Filesize

        36KB

        Download

      • memory/2788-39-0x00000000730A0000-0x00000000737B7000-memory.dmp

        Filesize

        7.1MB

        Download

      • memory/2788-43-0x00000000730A0000-0x00000000737B7000-memory.dmp

        Filesize

        7.1MB

        Download

      • memory/3380-5-0x00000000013F0000-0x0000000001406000-memory.dmp

        Filesize

        88KB

        Download

      • memory/4040-2-0x00000000001F0000-0x00000000001F9000-memory.dmp

        Filesize

        36KB

        Download

      • memory/4040-1-0x0000000000510000-0x0000000000610000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/4460-51-0x0000000000580000-0x0000000000680000-memory.dmp

        Filesize

        1024KB

        Download

      • memory/4852-23-0x0000000000DE0000-0x0000000001376000-memory.dmp

        Filesize

        5.6MB

        Download

      • memory/4852-27-0x0000000000DE0000-0x0000000001376000-memory.dmp

        Filesize

        5.6MB

        Download